The mesoporous MCM-48 was synthesized at room temperature with different templates such as hexadecytrimethylammonium bromide
(C16TABr), hexadecytrimethylammonium chloride (C16TACl) and dodecyltrimethlammonium chloride (C12TACl). The obtained
materials were characterized by XRD, N2 adsorption/desorption, FTIR and SEM techniques, and their performance as uranium adsorbent
were investigated. In this framework, the effect of contact time, pH of solution, initial uranium concentration and temperature were
investigated in batch reactor.
The results showed that the adsorption process was favorably fitted with the second-order kinetic model and the isotherm obeys to
Langmuir model. Moreover, the maximum adsorption capacity of MCM-48 for uranium (VI) was of the order of 160 mg/g. The
thermodynamic parameters indicated that the sorption of uranium ions on MCM-48 materials was a spontaneous and endothermic process.